Speaking of Pat Donahue, yes he does sing. In fact, he penned a parody of "Swingin' on a Star" and sang it on PHC. It should be required listnin' matter for all in this forum.
It begins:

Would you like to play the guitar
And bring your money home in a jar
From a coffee house or a bar
Or would you rather get a job?

A job is the thing that makes you get out of bed...